>>guest: the fbi works for the justice department and the attorney general. their chain of command would be to take it to the attorney -- the hoover years stopped it. that is what is upsetting in the hoover years with one intelligence agency investigating another and not telling anyone else. >>neil: what do we make leaving aside the draw difficult -- the tawdry details, what do you make of the agency investigating this other agency? >>guest: they should have taken it up the chain of command and saying we don't want to be have thing this. we know that the president didn't know, and the format that key members of congress were not informs so, that is the problem, why did it just stop withholder. and the political angle was it withheld to use it as leverage over general petraeus after september 11th? did general petraeus know he was being investigated? >>neil: how would that affect the october trip? >>guest: who is the guy who knows the most about terrorism and what happened in benghazi, probably david petraeus, the chief al qaeda warrior and fighter for iraq, a